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quigley



Member Since: 20 Oct 2009
Location: Kilkivan
Posts: 10

Australia 2009 Defender 110 Puma 2.4 SW Alpine White
Trailer wiring codes
I would appreciate help with the function of each of the colour coded wires which go into the Puma orange trailer connector. As mentioned in previous posts, this is located in the rear drivers side wheel arch (near the fuel filler).
From what I can see:
Green/brown Left indicator
Green/purple Right indicator
Green/white Brake stop light
Red/black Rear lights
The ones I am struggling with are
Black Earth?
Purple ?
Yellow/red ?
Red/orange ?
Green/red ?
Post #23222 29th Jan 2010 9:50pm
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Zinke



Member Since: 27 Jan 2009
Location: Scunthorpe
Posts: 670

United Kingdom 2003 Defender 90 Td5 HT Epsom Green
I think there is a pre wired plug in the rear drivers side wheel arch. Its behind the rubber flap. The pre wired cable (in the uk anyway) is relatively cheap.

Hope this helps a little.

Pete.
Post #23223 30th Jan 2010 12:18am
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spudfan



Member Since: 10 Sep 2007
Location: Co Donegal
Posts: 4636

Ireland 
Zinke wrote:
I think there is a pre wired plug in the rear drivers side wheel arch. Its behind the rubber flap. The pre wired cable (in the uk anyway) is relatively cheap.

Hope this helps a little.

Pete.

Yep, behind wheel arch drivers side. Pull down and plug in the trailer socket. 1982 88" 2.25 diesel
1992 110 200tdi csw -Zikali
2008 110 2.4 tdci csw-Zulu
2011 110 2.4 tdci csw-Masai
Post #23234 30th Jan 2010 11:59am
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bjartin



Member Since: 17 Nov 2009
Location: Hedmark, Matrand
Posts: 108

Norway 
I do not know if this overview may be of help!

http://www.team.net/sol/tech/LucasColours.html


Wiring Colour Code Table
Many British designed vehicles use colour coded cables to assist in identifying the various circuits in use. This is an extract from BS-AU7a 1983 Colour Code for Vehicle Wiring, from the British Standards Institution, 2 Park St., London W1A 2BS.
(Note that these colour codes may not apply directly to older cars. For example, the wipers on cars up to 1980 (at least) are not on a separate fuse circuit, so they are not orange, but green. Check the schematic for your car to be certain. - cak)
MAIN
TRACER
PURPOSE
Black

All earth connections
Black
Brown
Tachometer generator to tachometer
Black
Blue
Tachometer generator to tachometer
Black
Red
Electric or electronic speedometer to sensor
Black
Purple
Tempreature switch to warning light
Black
Green
Relay to radiator fan motor
Black
Light green
Vacuum brake switch or brake differential pressure valve to warning light and/or buzzer
Black
White
Brake fluid level warning light to switch and handbrake swith, or radio to speakers
Black
yellow
Electric speedometer
Black
Orange
Radiator fan motor to thermal switch
MAIN
TRACER
PURPOSE
Blue

Lighting switch (head) to dip switch
Blue
Brown
Headlamp relay to headlamp fuse
Blue
Red
Dip switch to headlamp dip beam fuse


Fuse to right-hand dip headlamp
Blue
Light green
Headlamp wiper motor to headlamp wash pump motor
Blue
White
a) Dip switch to headlamp main beam fuse


b)Headlamp flasher to main beam fuse


c)Dip switch main beam warning light


d)Dip switch to long-range driving light switch
Blue
Yellow
Long-range driving light switch to lamp
Blue
Black
Fuse to right-hand main headlamp
Blue
Pink
Fuse to left-hand dip headlamp
Blue
Slate
Headlamp main beam fuse to left-hand headlamp or inboard headlamps when independently fused
Blue
Orange
Fushe to right-hand dip headlamp
MAIN
TRACER
PURPOSE
Brown

Main battery lead
Brow
Blue
Control box (compensated voltage control only) to ignition switch and lighting switch (feed)
Brown
Red
Compression ignition starting aid to switch


Main battery feed to double pole ignition switch
Brown
Purple
Alternator regulator feed
Brown
Green
Dynamo 'F' to controlboxl 'F'


Alternator field 'F' to control box 'F'
Brown
White
Ammeter to control box


Ammeter to main alternator terminal
Brown
Yellow
Alternator to 'no charge' warning light
Brown
Black
Alternator battery sensing lead
Brown
Slate
Starter relay contact to starter solenoid
Brown
Orange
Fuel shut-off (diesel stop)
MAIN
TRACER
PURPOSE
Green

Accessories fuesed via ignition switch
Green
Brown
Switch to reverse lamp
Gree
Blue
Water temperature gauge to temperature unit
Green
Red
Direction indicator switch to left-hand flasher lamps
Green
Purple
Stop lamp switch to stop lamps, or stop lamp switch to lamp failure unit
Green
Light green
Hazard flasher unit to hazard pilot lamp or lamp failure unit to stop lamp bulbs
Green
White
Direction indicator switch to right hand flasher lamps
Green
Yellow
Heater motor to switch single speed (or to 'slow' on tow- or three-speed motor)
Green
Black
Fuel gauge to fuel tank unit or changeover switch or voltage stabilizer to tank units
Green
Pink
Fuse to flasher unit
Green
Slate
a) Heater motor to switch ('fast' on two- or three-speed motor)


b)Coolant level unit to warning light
Green
Orange
Low fuel level switch to warning light
MAIN
TRACER
PURPOSE
Light green

Instrument voltage stabilizer to instruments
Light green
Brown
Flasher switch to flasher unit
Light green
Blue
a)Flasher switch to left-hand flasher warning light


b)Coolant level sensor to control unit


c)Test switch to coolan level control unit
Light green
Red
Fuel tank changeover switch to right-hand tank unit or entry and exit door closed switch to door actuator
Light green
Purple
Flasher unit to flasher warning light
Light green
Green
Start inhibitor relay to change speed switch; or switch to heater blower motor second speed on three-speed unit
Light green
White
Low air pressure switch to buzzer and warning light
Light green
Yellow
Flasher switch to right-hand warning light; or differential lock switch to differential lock warning light
Light green
Black
Front screen jet switch to screen jet motor
Light green
Slate
Fuel tank changeover switch to left-hand tank unit; or entry and exit door open switch to door actuator
Light green
Orange
Rear window wash switch to wash pump; or cab lock-down switch to warning light
MAIN
TRACER
PURPOSE
Orange

Wiper circuits fused via ignition switch
Orange
Blue
Switch to front screen wiper motor first speed timer or intermittend unit
Orange
Green
Switch to front screen wiper motor second speed
Orange
Black
Switch to front screen wiper motor parking cicuit, timer or intermittent unit
Orange
Purple
Timer or intermittent unit to motor parking circuit
Orange
White
Timer or intermittent unit to motor parking circuit
Orange
Yellow
Switch to headlamp or rear window wiper motor feed, timer or relay coil
Orange
Light green
Switch to headlamp or rear window wiper motor parking circuit timer or relay coil
Orange
Pink
Timer or relay to headlamp or rear window wiper motor feed
Orange
Slate
Timer or relay to headlamp or rear window wiper motor parking circuit
Pink
white
Ballast terminal to ignition distributor
MAIN
TRACER
PURPOSE
Purple

Accessories fed direct from battery via fuse
Purple
Brown
Horn fuse to horn relay when horn is fused separately
Purple
Blue
Fuse to heated rear window relay or switch and warning light
Purple
Red
Switches to map light, under bonnet light, glove box light and boot lamp when fed direct from battery fuse
Purple
Green
Fuse to hazard flasher
Purple
Light green
Fuse to relay for screen demist
Purple
White
Interior lights to switch (subsidiary circuit door safety lights to switch)
Purple
Yellow
Horn to horn relay
Purple
Black
Horn to horn relay to horn push
Purple
Pink
Rear heated window to switch or relay
Purple
Slate
Aerial lift motor to switch up
Purple
Orange
Aerial lift motor to switch down
MAIN
TRACER
PURPOSE
Red

Main feed to all circuits mastered by sidelamp switch
Red
Brown
Rear fog guard switch to lamps
Red
Blue
Front fog lamp fuse to fog lamp switch
Red
Purple
Switches to map light, under bonnet light, glove box light and boot lamp when sidelamp circuit fed
Red
Green
Bulb failure unit to right-hand-side and rear lamps
Red
White
a)Sidelamp fuse to right-hand side and rear lamps


b)Sidelamp fuse to panel light rheostat


c)Fuse to panel light switch or rheostat


d) Fuse to fibre optic source
Red
Yellow
Fog lamp switch to fog lamp or front fog fuse to fog lamps
Red
Blakc
Left-hand,sidelamp fuse to side and tail lamps and number plate illumination
Red
Pink
Sidelamp fuse to lighting relay
Red
Slate
Lamp failure unit to lef-hand side and tail lamps
Red
Orange
Fusebox to rear fog guard switch
Slate

Window lift main lead
MAIN
TRACER
PURPOSE
White

Ignition switch or starter solenoid to ballast resistor
White
Brown
Oil pressure switch to warning light or gauge, or starter relay to oil pressure switch
White
Blue
Choke switch to choke solenoid (unfused) and/or choke to switch to warning light, or electronic ignition distributor to drive resistor
White
Red
Starter switch to starter solenoid or inhibitor switch or starter relay or ignition (start position) to bulb failure unit
White
Purple
Fuel pump no 1 or right-hand to changeover switch
White
Green
Fuel pump no 2 or left-hand to changeover switch
White
Light green
Start switch to starter interlock or oil pressure switch to fuel pump or start inhibitor switch to starter relay or solenoid
White
Yellow
Ballast resistor to coil or starter solenoid to coil
White
Black
Ignition coil contact breaker to distributor contact breaker, or distributor side of coil to voltage impulse tachometer
White
Pink
Ignition switch to radio fuse
White
Slate
Current tachometer to ignition coil
White
Orange
Hazard warning lead to switch
Yellow

a) Overdrive


b) Petrol injection


c)Door locks


d)Gear selector switch to start
Many of the usual suspects carry Lucas bullet connectors. A few carry reproduction wiring harnesses. But very few carry the properly color-coded wire, and most of those only carry a small selection of colors and sizes.
Post #23240 30th Jan 2010 1:54pm
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mse



Member Since: 06 Apr 2008
Location: UK
Posts: 5034

United Kingdom 2016 Defender 110 Puma 2.2 XS CSW Scotia Grey
Zinke wrote:
I think there is a pre wired plug in the rear drivers side wheel arch. Its behind the rubber flap. The pre wired cable (in the uk anyway) is relatively cheap.

Hope this helps a little.

Pete.


Yep - its a grey plu £60 should see you with a plug in solution saves time and cocking it up Mike
Post #23255 30th Jan 2010 7:07pm
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solmanic



Member Since: 16 Aug 2007
Location: Brisbane
Posts: 191

Australia 2007 Defender 110 Puma 2.4 XS CSW Stornoway Grey
You can't use any of the UK trailer plugs in Australia. The only way to wire up a trailer plug here is by splicing into each wire individually (my auto-electrician left the original connector in place). Hence the importance of knowing which wire operates which light. 2007 Defender 110
1970 Alfa Romeo 1750GTV
Post #23337 31st Jan 2010 11:04pm
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Zinke



Member Since: 27 Jan 2009
Location: Scunthorpe
Posts: 670

United Kingdom 2003 Defender 90 Td5 HT Epsom Green
Could you not cut the uk plug off the end? Then wire up your type of plug you need? Or do you need more than the functions we have?

Still doesnt help with the wiring colours though lol.
Post #23339 31st Jan 2010 11:33pm
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quigley



Member Since: 20 Oct 2009
Location: Kilkivan
Posts: 10

Australia 2009 Defender 110 Puma 2.4 SW Alpine White
Many thanks for the replies and help.
The reason I was seeking the colour codes is that I want to replace the original trailer connector. I have not been able to match that connector in Australia. And while a genuine trailer kit is available from Land Rover for some A$300 it will not match our Australian trailer sockets as our coding system is different, and will have to be modified anyway. Rather than cut into wires I will replace the connector all together and make up my own cable and Australian plug.
The wiring colour code table posted by bjartin has been most handy as it confirms the main colour codes.
Interestingly, Land Rover don't seem to be useing the tracer codes from that table.
From testing the wires into the original trailer connector I am happy with direction, brake and lamp wires and can proceed. I wanted to connect up for electric trailer brakes and the Purple main wire seems to be part of that.
I note that wiring diagrams are being discussed on in another topic area and will try to obtain one.
In the meantime I left my parking lights on for a few days after tracing the wires and now have a dead flat battery.
On a happier note it is raining here and my Puma has got wet. That's twice now since I got it seven months ago.
Post #23393 1st Feb 2010 5:58pm
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